Patents by Inventor Andres M. Arismendi, Jr.

Andres M. Arismendi, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Modified radial polymers
    Patent number: 5599879
    Abstract: A super-tough polymeric composition comprising an engineering thermoplastic and a modified radial polymer. The engineering thermoplastic is selected from the group consisting of polyamides, thermoplastic polyesters, polyphenylene ether resins, polyarylene sulfide resins, polysulfone and the like. The modified radial polymer is modified by grafting a compound containing a carboxylic acid or carboxylic acid derivative group. The modified, radial polymer has from about 3 to about 50 arms, as determined using light scattering techniques and the arms will be olefin polymers. The polymer compositions will yield shaped articles which fail ductilely when tested using ASTM procedure D-256 at room temperature and some at -20.degree. F.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: February 4, 1997
    Assignee: Shell Oil Company
    Inventors: Richard Gelles, Carl L. Willis, John E. Gorman, Andres M. Arismendi, Jr.
  • Blends of modified radial polymers and engineering thermoplastic polymers
    Patent number: 5218044
    Abstract: A super-tough polymeric composition comprising an engineering thermoplastic and a modified radial polymer. The engineering thermoplastic is selected from the group consisting of polyamides, thermoplastic polyesters, polyphenylene ether resins, polyarylene sulfide resins, polysulfone and the like. The modified radial polymer is modified by grafting a compound containing a carboxylic acid or carboxylic acid derivative group. The modified, radial polymer has from about 3 to about 50 arms, as determined using light scattering techniques and the arms will be olefin polymers. The polymer compositions will yield shaped articles which fail ductilely when tested using ASTM procedure D-256 at room temperature and some at -20.degree. F.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: June 8, 1993
    Assignee: Shell Oil Company
    Inventors: Richard Gelles, Carl L. Willis, John E. Gorman, Andres M. Arismendi, Jr.